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Post
Tim Kellogg
timkellogg.me
did:plc:ckaz32jwl6t2cno6fmuw2nhn
Anthropic full postmortem
- long context routing bug
- output corruption bug
- approx top-k bug on TPU
plus: why it was so difficult and slow to fix
this is going to be a thread
https://www.anthropic.com/engineering/a-postmortem-of-three-recent-issues
2025-09-18T11:26:22.703Z